CN115060521B - High-humidity environment simulation device and method for torch test - Google Patents
High-humidity environment simulation device and method for torch test Download PDFInfo
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- 230000007613 environmental effect Effects 0.000 claims abstract description 6
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a high-humidity environment simulation device and method for a torch test, and belongs to the field of test simulation devices. According to the invention, the structural characteristics of the dew point indirect evaporative cooler are utilized to synchronously obtain low-temperature air and high-temperature wet air with large moisture content difference, the low-temperature air is sprayed from the top of the environment simulation cabin and moves downwards under the driving of the environment temperature difference, the high-temperature wet air is sprayed from the bottom of the environment simulation cabin and moves upwards under the driving of the environment temperature difference, and the low-temperature air and the high-temperature wet air are highly mixed in the handheld torch testing section, so that the humidity uniformity of the testing section can be greatly improved. Along with the temperature decline of the humid air of high temperature, the humidity of air can be close to saturated humidity fast, and then has realized the environmental simulation of high humidity, can acquire the performance data of handheld torch under extreme high humid environment.
Description
Technical Field
The invention relates to the technical field of torch testing, in particular to a high-humidity environment simulation device and method for the torch testing.
Background
The handheld torch is an important component of a large-scale sports meeting and needs to have the characteristics of stable and reliable combustion and zero extinguishment. The handheld torch needs to be fully tested before formal setting, so that the comprehensive test bench capable of simulating the transmission environmental conditions is developed aiming at various environments possibly encountered in the torch combustion and transmission processes, which is the core work of torch research and development, and the comprehensive test bench is used for investigating functional performance indexes of the torch, such as flame form, flame length, ignition reliability, combustion stability, working safety and the like.
Current handheld torches typically employ high pressure storage of gaseous fuel and provide the fuel upon combustion by way of pressure reduction. Because the high-pressure gaseous fuel can generate cold when being decompressed and parts such as the decompression valve are all made of metal, the part of the handheld torch under the high-humidity environment can be dewed or frosted, and further the combustion or transmission stability of the torch is influenced, so that the testing of the handheld torch under the high humidity is very important. However, the existing testing system for the handheld torch usually adopts devices such as a humidifier to increase the humidity of the testing environment, so that the humidity of the testing environment is different from the saturated humidity, and the limit condensation or frosting condition of the handheld torch cannot be tested. In addition, the high-humidity gas output by the humidifier has a large density difference with the ambient gas, so that the spatial humidity distribution near the handheld torch is uneven.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a high-humidity environment simulation device and method for a torch test.
The invention aims to realize the purpose of the invention by the following technical scheme:
in a first aspect, the invention provides a high-humidity environment simulation device for a flare test, which comprises an air pipeline, a low-temperature air pipeline, a high-temperature wet air pipeline, a water pipeline, a dew point indirect evaporative cooler and an environment simulation cabin, wherein the air pipeline is connected with the low-temperature air pipeline;
the tail ends of the air pipelines are respectively connected with a low-temperature air pipeline and a high-temperature wet air pipeline after sequentially passing through an air inlet valve and a fan;
the dew point indirect evaporative cooler comprises a dew point indirect evaporative cooler dry channel and a dew point indirect evaporative cooler wet channel;
the low-temperature air pipeline is sequentially connected with a dew point indirect evaporative cooler dry channel, a low-temperature air inlet valve and a low-temperature air nozzle, the low-temperature air inlet valve and the low-temperature air nozzle are both positioned in the environment simulation cabin, and the low-temperature air nozzle is arranged at the top end of the environment simulation cabin;
the high-temperature wet air pipeline is sequentially connected with the electric heater, the dew-point indirect evaporative cooler wet channel, the high-temperature wet air inlet valve and the high-temperature wet air nozzle are both positioned in the environment simulation cabin, and the high-temperature wet air nozzle is arranged at the bottom of the environment simulation cabin;
the water pipeline is sequentially connected with the water tank, the water valve, the water pump and the dew point indirect evaporative cooler wet channel and is used for increasing the air humidity;
the environment simulation cabin is internally provided with an installation component of the handheld torch, a low-temperature air nozzle in the environment simulation cabin sprays low-temperature air from top to bottom, a high-temperature wet air nozzle sprays high-temperature wet air from bottom to top, and the low-temperature air nozzle and the high-temperature wet air nozzle are mixed at the height of a test section of the handheld torch to form a simulated saturated humidity environment.
Preferably, the environment simulation cabin is connected with an external discharge pipeline which is controlled to be opened and closed by a discharge valve.
Preferably, the water stored in the water tank is pure water.
Preferably, the temperature of the air heated by the electric heater is increased by a certain extent, so that sensible heat of the air is not transferred to the dry channel of the dew point indirect evaporative cooler.
Preferably, the low temperature air jet and the high temperature wet air jet are both close to the position of the handheld torch.
Preferably, in the environment simulation cabin, one or more groups of low-temperature air nozzles and high-temperature wet air nozzles are arranged.
Preferably, the mounting assembly is a detachable mounting assembly.
In a second aspect, the present invention provides a high humidity environment simulation method for a torch test using the simulation apparatus according to any one of the first aspects, including:
s1, opening an air inlet valve, a low-temperature air inlet valve, a high-temperature wet air inlet valve, a water valve and a discharge valve, and starting a fan, an electric heater and a water pump;
s2, liquid water in the water tank continuously enters a water pipeline under the action of a water pump, and enters a wet channel of the dew point indirect evaporative cooler after passing through the water valve and the water pump in sequence;
s3, air continuously enters the air pipeline under the action of the fan, and is divided into two paths after passing through the air inlet valve and the fan in sequence, wherein one path enters the high-temperature wet air pipeline, and the other path enters the low-temperature air pipeline;
s4, heating the air entering the high-temperature wet air pipeline by an electric heater to lower the relative moisture content of the air, then entering a wet channel of a dew point indirect evaporative cooler of the dew point indirect evaporative cooler, continuously performing heat and moisture exchange with water from a water pipeline to form high-temperature wet air, and simultaneously transferring cold energy generated by water evaporation and heat absorption in the wet channel of the dew point indirect evaporative cooler to a dry channel of the dew point indirect evaporative cooler; the high-temperature wet air sequentially passes through the high-temperature wet air inlet valve and the high-temperature wet air nozzle and then enters the top of the environment simulation cabin to be sprayed from top to bottom;
s5, the air entering the low-temperature air pipeline directly enters a dew point indirect evaporative cooler dry channel of a dew point indirect evaporative cooler, low-temperature air is formed after cold energy provided by a dew point indirect evaporative cooler wet channel is absorbed, and then the low-temperature air sequentially passes through a low-temperature air inlet valve and a low-temperature air nozzle and enters the bottom of the environment simulation cabin to be sprayed out from bottom to top;
s6, mixing the high-temperature wet air and the low-temperature air entering the environment simulation cabin, forming air with approximately saturated humidity around the handheld torch so as to create a simulated saturated humidity environment, and condensing water vapor on the partial surface of the handheld torch in the test process; in the simulation process, part of the mixed air is discharged out of the environment simulation cabin through the discharge valve, so that the internal pressure is prevented from being overhigh.
The humidification mode among the conventional torch environment simulation system is under the unchangeable condition of saturation humidity value, increases the absolute humidity of environment, and then promotes relative humidity, makes it go to approximate saturation humidity value, nevertheless because multiple restriction, makes to have great difference between test environment's relative humidity and the saturation humidity. The invention reduces the saturation humidity value by cooling the high-temperature wet air with the low-temperature air under the condition that the absolute humidity is not changed, thereby enabling the relative humidity of the test environment to be approximately equal to the saturation humidity value.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that: the structural characteristics of the dew point indirect evaporative cooler are utilized to synchronously obtain low-temperature air and high-temperature humid air with large moisture content difference, the structure is simple, and the operation is convenient; the low-temperature air is sprayed from the top of the environment simulation cabin and moves downwards under the driving of the environment temperature difference, the high-temperature wet air is sprayed from the bottom of the environment simulation cabin and moves upwards under the driving of the environment temperature difference, and the low-temperature air and the high-temperature wet air are highly mixed in the handheld torch testing section, so that the humidity uniformity of the testing section can be greatly improved; along with the temperature decline of the humid air of high temperature, the humidity of air can be close to saturated humidity fast, and then has realized the environmental simulation of high humidity, can acquire the performance data of handheld torch under extreme high humid environment.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings so as to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic structural diagram of a high humidity environment simulation system for flare testing according to the present invention.
The reference numbers in the figures are: the device comprises an air pipeline 1, an air inlet valve 2, a fan 3, a dew point indirect evaporative cooler 4, a low-temperature air pipeline 5, a dew point indirect evaporative cooler dry channel 6, a low-temperature air inlet valve 7, a low-temperature air nozzle 8, a high-temperature wet air pipeline 9, an electric heater 10, a dew point indirect evaporative cooler wet channel 11, a high-temperature wet air inlet valve 12, a high-temperature wet air nozzle 13, a water pipeline 14, a water tank 15, a water valve 16, a water pump 17, an environment simulation cabin 18, a handheld torch 19 and a discharge valve 20.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. The technical characteristics in the embodiments of the present invention can be combined correspondingly without mutual conflict.
In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element, i.e., intervening elements may be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
As shown in fig. 1, in a preferred embodiment of the present invention, a high humidity environment simulation device for flare test is provided, the core components of which include an air line 1, an air intake valve 2, a fan 3, a dew point indirect evaporative cooler 4, a low temperature air line 5, a dew point indirect evaporative cooler dry channel 6, a low temperature air intake valve 7, a low temperature air nozzle 8, a high temperature wet air line 9, an electric heater 10, a dew point indirect evaporative cooler wet channel 11, a high temperature wet air intake valve 12, a high temperature wet air nozzle 13, a water line 14, a water tank 15, a water valve 16, a water pump 17, an environment simulation cabin 18, a hand-held flare 19, and a discharge valve 20. This analogue means utilizes electric heater and the equal different air of dew point indirect evaporative cooler preparation temperature and humidity to arrange through reasonable space and make two kinds of gas mixture, under the unchangeable condition of absolute humidity, reduce gaseous saturation humidity value through the cooling, and then make the humidity in handheld torch test area close to saturation humidity.
The specific connection mode and the work flow of each component in the high humidity environment simulation device for torch test are described in detail below.
In the device, air is input through an air pipeline 1, the air pipeline 1 passes through an air inlet valve 2 and a fan 3 in sequence, and the tail ends of the air pipeline are respectively connected with a low-temperature air pipeline 5 and a high-temperature wet air pipeline 9. The air inlet valve 2 can control the on-off of the air pipeline 1 as a whole, and the fan 3 is used for providing conveying power of air.
The dew point indirect evaporative cooler 4 comprises a dew point indirect evaporative cooler dry channel 6 and a dew point indirect evaporative cooler wet channel 11, and the specific structure and principle of the dew point indirect evaporative cooler 4 belong to the prior art, and are not described in detail. The low-temperature air pipeline 5 and the high-temperature wet air pipeline 9 need to respectively connect air into the dew-point indirect evaporative cooler dry channel 6 and the dew-point indirect evaporative cooler wet channel 11, so that the air is cooled in the dew-point indirect evaporative cooler dry channel 6, and the air is heated in the dew-point indirect evaporative cooler wet channel 11.
The low-temperature air pipeline 5 is sequentially connected with a dew point indirect evaporative cooler dry channel 6, a low-temperature air inlet valve 7 and a low-temperature air nozzle 8, the low-temperature air inlet valve 7 and the low-temperature air nozzle 8 are both located in an environment simulation cabin 18, the low-temperature air nozzle 8 is arranged at the top end of the environment simulation cabin 18, and the cooled low-temperature air can be conveyed to the top end of the environment simulation cabin 18.
The high-temperature wet air pipeline 9 is sequentially connected with an electric heater 10, a dew point indirect evaporative cooler wet channel 11, a high-temperature wet air inlet valve 12 and a high-temperature wet air nozzle 13, the high-temperature wet air inlet valve 12 and the high-temperature wet air nozzle 13 are both positioned in an environment simulation cabin 18, the high-temperature wet air nozzle 13 is arranged at the bottom of the environment simulation cabin 18, and the warmed and humidified high-temperature wet air can be conveyed to the bottom of the environment simulation cabin 18.
The water pipeline 14 is sequentially connected with the water tank 15, the water valve 16, the water pump 17 and the dew point indirect evaporative cooler wet passage 11, and is used for pumping the liquid water stored in the water tank 15 into the dew point indirect evaporative cooler wet passage 11, and increasing the air humidity through temperature rise and evaporation.
It should be noted that the low-temperature air line 5 is used for inputting low-temperature air into the environment simulation chamber 18, and the high-temperature wet air line 9 is used for inputting high-temperature wet air into the environment simulation chamber 18. It should be noted that the low-temperature air and the high-temperature humid air in the present invention are not limited to specific temperatures and humidities, and the temperatures and humidities are only relatively high and low with respect to the temperature and humidity of the air initially input in the air line 1. That is, the low temperature air is air having a lower temperature relative to the initially inputted air, and the high temperature humid air is air having a higher temperature and a higher humidity relative to the initially inputted air. The temperature and the humidity of the low-temperature air and the high-temperature wet air which need to be controlled can be optimized and adjusted according to actual simulation conditions, so that a saturated humidity environment meeting simulation requirements can be created.
The environment simulation cabin 18 is a main body for realizing simulation, and a mounting component of a handheld torch 19 is arranged in the environment simulation cabin 18, and the specific mounting component is not limited in form, and a detachable plug-in mounting component or a buckle-type mounting component is preferably adopted. The low-temperature air nozzle 8 in the environment simulation cabin 18 sprays low-temperature air from top to bottom, the high-temperature wet air nozzle 13 sprays high-temperature wet air from bottom to top, and the low-temperature air nozzle and the high-temperature wet air nozzle are mixed at the height of the test section of the handheld torch 19 to form a simulated saturated humidity environment. The height of the test section of the handheld torch 19 can be determined according to the actual test protocol.
In the invention, the environment simulation cabin 18 is preferably a heat insulation closed simulation cabin, so that an external discharge pipeline controlled to be opened and closed by a discharge valve 20 can be connected to the environment simulation cabin 18. When the pressure inside the environmental chamber 18 is too high, the gas can be discharged by opening the discharge valve 20. The drain valve 20 may be in the form of a pressure relief valve or the like.
In addition, as a preferred implementation manner of the embodiment of the present invention, the water stored in the water tank 15 is pure water, so as to prevent minerals from being generated on the surface of the electric heater and affecting the heating efficiency.
In addition, as a preferable implementation manner of the embodiment of the present invention, the temperature of the air heated by the electric heater 10 should not be raised too much, and it should be ensured that the sensible heat is not transferred to the dew point indirect evaporative cooler dry channel 6.
Because the saturated humidity environment is created by depending on the low-temperature air sprayed from top to bottom in the low-temperature air nozzle 8 and the high-temperature wet air sprayed from bottom to top in the high-temperature wet air nozzle 13, the low-temperature air nozzle 8 and the high-temperature wet air nozzle 13 are both close to the handheld torch 19, and the mixing area of the two is positioned near the handheld torch 19.
In addition, in order to ensure that the saturated humidity environment near the handheld torch 19 in the environment simulation chamber 18 is uniform, one or more groups of the low-temperature air nozzles 8 and the high-temperature wet air nozzles 13 can be arranged as required.
In another preferred embodiment of the present invention, by using the simulation apparatus shown in fig. 1, there is provided a method for simulating a high humidity environment for a torch test, which includes the following steps:
s1, opening an air inlet valve 2, a low-temperature air inlet valve 7, a high-temperature wet air inlet valve 12, a water valve 16 and a discharge valve 20, and starting a fan 3, an electric heater 10 and a water pump 17;
s2, liquid water in the water tank 15 continuously enters the water pipeline 14 under the action of the water pump 17, and enters the wet channel 11 of the dew point indirect evaporative cooler after passing through the water valve 16 and the water pump 17 in sequence;
s3, air continuously enters the air pipeline 1 under the action of the fan 3, and is divided into two paths after passing through the air inlet valve 2 and the fan 3 in sequence, wherein one path enters the high-temperature wet air pipeline 9, and the other path enters the low-temperature air pipeline 5;
s4, heating the air entering the high-temperature wet air pipeline 9 by an electric heater to lower the relative moisture content of the air, then entering a dew point indirect evaporative cooler wet channel 11 of the dew point indirect evaporative cooler 4, continuously performing heat and moisture exchange with water from a water pipeline 14 to form high-temperature wet air, and simultaneously transferring cold energy generated by water evaporation and heat absorption in the dew point indirect evaporative cooler wet channel 11 to a dew point indirect evaporative cooler dry channel 6; the high-temperature wet air sequentially passes through the high-temperature wet air inlet valve 12 and the high-temperature wet air nozzle 13 and then enters the top of the environment simulation cabin 18 to be sprayed from top to bottom;
s5, directly feeding air entering the low-temperature air pipeline 5 into a dew point indirect evaporative cooler dry channel 6 of a dew point indirect evaporative cooler 4, absorbing cold energy provided by a dew point indirect evaporative cooler wet channel 11 to form low-temperature air, and feeding the low-temperature air into the bottom of an environment simulation cabin 18 through a low-temperature air inlet valve 7 and a low-temperature air nozzle 8 in sequence to be sprayed out from bottom to top;
s6, mixing high-temperature wet air and low-temperature air entering the environment simulation cabin 18, forming air with approximately saturated humidity around the handheld torch 19 so as to create a simulated saturated humidity environment, and condensing water vapor on the partial surface of the handheld torch in the test process; during the simulation, a portion of the mixed air is vented out of the environmental chamber 18 through the vent valve 20 to prevent excessive internal pressure.
It should be noted that the foregoing S1 to S6 are not limited to have a sequential relationship, and the actuation sequence of each component may be adjusted according to the actual situation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A high humidity environment simulation device for a torch test is characterized by comprising an air pipeline (1), a low temperature air pipeline (5), a high temperature wet air pipeline (9), a water pipeline (14), a dew point indirect evaporative cooler (4) and an environment simulation cabin (18);
the tail ends of the air pipeline (1) are respectively connected with the low-temperature air pipeline (5) and the high-temperature wet air pipeline (9) after sequentially passing through the air inlet valve (2) and the fan (3);
the dew point indirect evaporative cooler (4) comprises a dew point indirect evaporative cooler dry channel (6) and a dew point indirect evaporative cooler wet channel (11) inside;
the low-temperature air pipeline (5) is sequentially connected with a dew point indirect evaporative cooler dry channel (6), a low-temperature air inlet valve (7) and a low-temperature air nozzle (8), the low-temperature air inlet valve (7) and the low-temperature air nozzle (8) are both positioned in the environment simulation cabin (18), and the low-temperature air nozzle (8) is arranged at the top end of the environment simulation cabin (18);
the high-temperature wet air pipeline (9) is sequentially connected with an electric heater (10), a dew point indirect evaporative cooler wet channel (11), a high-temperature wet air inlet valve (12) and a high-temperature wet air nozzle (13), the high-temperature wet air inlet valve (12) and the high-temperature wet air nozzle (13) are both positioned in an environment simulation cabin (18), and the high-temperature wet air nozzle (13) is arranged at the bottom of the environment simulation cabin (18);
the water pipeline (14) is sequentially connected with a water tank (15), a water valve (16), a water pump (17) and a dew point indirect evaporative cooler wet channel (11) and is used for increasing air humidity;
the environment simulation cabin (18) is internally provided with an installation component of a handheld torch (19), a low-temperature air nozzle (8) in the environment simulation cabin (18) sprays low-temperature air from top to bottom, a high-temperature wet air nozzle (13) sprays high-temperature wet air from bottom to top, and the low-temperature air nozzle and the high-temperature wet air nozzle are mixed at the height of a test section of the handheld torch (19) to form a simulated saturated humidity environment.
2. The high-humidity environment simulation device for the flare test, according to claim 1, wherein an external discharge pipeline opened and closed by a discharge valve (20) is connected to the environment simulation chamber (18).
3. The high-humidity environment simulation apparatus for torch test according to claim 1, wherein the water stored in the water tank (15) is pure water.
4. The high-humidity environment simulation device for torch test according to claim 1, wherein the temperature of the air heated by the electric heater (10) is raised to an extent that sensible heat is not transferred to the dew point indirect evaporative cooler dry channel (6).
5. The high humidity environment simulator for flare testing of claim 1, wherein the low temperature air nozzle (8) and the high temperature and humidity air nozzle (13) are both located near a hand-held flare.
6. The high-humidity environment simulation device for the flare test, according to claim 1, wherein one or more groups of the low-temperature air nozzle (8) and the high-temperature and wet air nozzle (13) are arranged in the environment simulation chamber (18).
7. The high-humidity environment simulation device for torch testing of claim 1, wherein the mounting assembly is a detachable mounting assembly.
8. A method of simulating a high humidity environment for flare testing using the simulator of any of claims 1~7, comprising:
s1, opening an air inlet valve (2), a low-temperature air inlet valve (7), a high-temperature wet air inlet valve (12), a water valve (16) and a discharge valve (20), and starting a fan (3), an electric heater (10) and a water pump (17);
s2, liquid water in the water tank (15) continuously enters the water pipeline (14) under the action of the water pump (17), and enters the wet channel (11) of the dew point indirect evaporative cooler after passing through the water valve (16) and the water pump (17) in sequence;
s3, air continuously enters the air pipeline (1) under the action of the fan (3), and is divided into two paths after passing through the air inlet valve (2) and the fan (3) in sequence, wherein one path enters the high-temperature wet air pipeline (9), and the other path enters the low-temperature air pipeline (5);
s4, air entering the high-temperature wet air pipeline (9) is heated by an electric heater to lower the relative moisture content of the air, then enters a dew point indirect evaporative cooler wet channel (11) of the dew point indirect evaporative cooler (4) and is subjected to continuous heat and moisture exchange with water from a water pipeline (14) to form high-temperature wet air, and meanwhile, cold energy generated by evaporation and heat absorption of the water in the dew point indirect evaporative cooler wet channel (11) is transferred to a dew point indirect evaporative cooler dry channel (6); the high-temperature wet air sequentially passes through the high-temperature wet air inlet valve (12) and the high-temperature wet air nozzle (13) and then enters the bottom of the environment simulation cabin (18) to be sprayed out from bottom to top;
s5, directly enabling air entering a low-temperature air pipeline (5) to enter a dew point indirect evaporative cooler dry channel (6) of a dew point indirect evaporative cooler (4), absorbing cold energy provided by a dew point indirect evaporative cooler wet channel (11) to form low-temperature air, and enabling the low-temperature air to sequentially enter a low-temperature air inlet valve (7) and a low-temperature air nozzle (8) and then enter the top of an environment simulation cabin (18) to be sprayed out from top to bottom;
s6, mixing the high-temperature wet air and the low-temperature air entering the environment simulation cabin (18) with each other, forming air with approximately saturated humidity around the handheld torch (19) so as to create a simulated saturated humidity environment, and condensing water vapor on the partial surface of the handheld torch in the test process; during the simulation, part of the mixed air is discharged out of the environmental chamber (18) through a discharge valve (20) to prevent excessive internal pressure.
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| CN101799515B (en) * | 2010-03-10 | 2012-05-23 | 北京航空航天大学 | Large multifunctional environmental simulator for electrical test |
| JP2014163779A (en) * | 2013-02-25 | 2014-09-08 | Yoshiharu Maruyama | Environment resistance test method |
| JP6094569B2 (en) * | 2014-12-15 | 2017-03-15 | 三菱重工冷熱株式会社 | Environmental test equipment |
| CN105182889A (en) * | 2015-08-07 | 2015-12-23 | 深圳市西宝船舶电子有限公司 | Multifunctional environment simulation cabin |
| CN211906105U (en) * | 2020-05-13 | 2020-11-10 | 上海佐竹冷热控制技术有限公司 | Environmental chamber |
| CN112229635A (en) * | 2020-10-29 | 2021-01-15 | 中国人民解放军陆军军事交通学院 | Test system for testing plateau and high-altitude performance of fuel cell engine |
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2022
- 2022-06-28 CN CN202210751637.9A patent/CN115060521B/en active Active
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